Answer
Please see the work below.
Work Step by Step
As we know that
$Q=mL$
We plug in the known values to obtain:
$Q=(28)(213000)$
$Q=6.0\times 10^6J$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.